"Run Ftools..." option is no long available. Users are encouraged to use the new "fgui" task that is distributed with ftools.

"Skyview..." catalog selection is now only available via "Catalog..." option.

Adding capability to re-order the display of FITS columns.

Expand capability to sorting/modification of FITS columns parameters.

Tracking parent window view via vector columns in "Expand"ed view .

Allow user to specify path for DS9 and XPA in Windows.

Fix Windows platform of printing countor map on image problem.

Modified how the rotation angle in region files is interpreted to be consistent with DS9
(angle is w.r.t. the North direction in the image).

Add capability to handle more than 9 parameters.

Add capability to invoke future HERA modules.

Fix running FTOOLS tools not copying physical par file problem.

Add capablity to display 4D table and image (movie).

Update logic for display CAR projection.

Change vizier/skyview/catalog file naming scheme.

Rework background backup directory cleanup logics.

fv runs under most major operating systems: Unix/Linux, Windows,
and Mac OS.

Basic fv functions -- open, display, plot data, sort, save, close -- can be accessed from
simple TCL scripts. With the
XPA package (available separately from SAO) for unix, fv can be
controlled by other programs. On Mac OS, fv can be
controlled with AppleScript. Sample programs written using XPA
(C, Tcl, and Csh), Tcl, and AppleScript are included.

Added more XPA scripting command for controlling fv from external processes, including
create (create an image or table file or extension), export (export hdu to a
Fits file or a text file), opentool (open skyview, catalog, vizier
or ftools dialog panel) and preference (set up FV preferences). See
Scripting for more information.

Adding support for Cartesian projection.

Adding record capability for profile of FITS image.

Enhanced capabilities for printing and saving FITS image or plot, including the
ability to preview the image before printing.

A row selection function was added to fv. User can select/deselect row(s) by
clicking on the row index in the table with the mouse's left button (or
clicking left button then right button to select row range). Row(s) also can
be selected using selection condition and expression.

fv's plot, calculator, histogram and statistics tools now can perform on the
selected rows.

Export command can export the selected rows and columns from a table to
fits file or text file.

Files can be opened (read-only) across the
internet (http and ftp protocols). FTP sites can be browsed from
the "Open File" dialog box.

The SkyView online database can be searched
for images of and object lists for a region of the sky.
Results are downloaded in FITS format which then can be
plotted.

Filename completion eases browsing large directories and typing
long names... type the first few letters of a filename and then
hit TAB.

A summary window lists the
contents and size of all the extensions in the FITS file. Entire
extensions can be copied, cut, and pasted to/from the clipboard
which can be saved to a new FITS file. New,
empty FITS files can be created. Empty extensions of any of the
3 basic types -- image, ASCII table, and binary table -- can be
appended to existing files.

Enhanced support for ds9 image display. User can choose
to display images or plots using either DS9 or POW as the primary display tool.

Function buttons incorported to the File
Summary window to provide short cuts to common operations:
'Hist' (displays a histogram image of 1 or 2 columns in a table), 'Plot' (plots table columns),
'Table All' and 'Table Select' (The first button displays all the columns in a table, whereas the
second button allows the user to select which columns to display).

When displaying Hierarchical grouping tables, a new 'OPEN' button is
available at the beginning of each row which can be used to open the
corresponding group member file.

Can display and edit images that are compressed with the new FITS 'Tile
Compression' algorithm.

FITS headers may be displayed in a
scrolling text window. Keywords may be edited, inserted, or deleted,
and an ASCII text listing of the header may be generated.
Checksum keywords can be created or updated when a
file is modified.

Selected columns in a FITS table
may be viewed in a scrolling spreadsheet. The values in the
table may be edited, and rows and columns may be inserted or
deleted in the table. Tables can be sorted using multiple keys
and rows with identical keys optionally deleted. Table rows can
be selectively deleted using a boolean expression evaluated for
each row. The contents of a table may be saved to an ASCII text
file.

Line plots of one or more columns (or
arithmetic expressions involving one or more columns) in a
table may be generated and displayed in the POW widget. Data
can be extracted from a subset of rows; each row of a vector
column can be plotted as a separate curve. Individual columns or
pairs of columns can be used to produce 1D or 2D histograms,
respectively, and plotted in POW.

A spreadsheet calculator function
allows you to create new columns by performing arithmetic on existing
columns.

FITS images may be displayed with the usual pan, zoom, and color
table manipulation facilities. Users may choose to use the SAOtng
or DS9 image display tools (available separately from SAO), or the
internal image display widget called POW
that is supplied with fv. Double clicking
an image displayed by POW will bring up a fv table of the
image data with the clicked pixel highlighted.

FITS image data also may be displayed as a table, allowing
individual pixels to be edited. Selected rows or columns can be
averaged and their pixels plotted in a line graph.
Image data can be smoothed using a boxcar filter.

On Unix machines with FTOOLS installed, one can select and execute
an FTOOL from within fv.

An optional "Desktop Manager" allows for management of
the various fv windows.

Fix ploygon creation problem, allow right mouse button to drag the existing vertex,
left mouse button for creation and move the region.

Add color changes capability in Edit Region Panel.

Fix one dimension plot/image label problem.

An image's colortable (i.e. contrast and bias) can be
interactively manipulated. More than
20 different color schemes can be selected.

Histogram Equalization colormap
intelligently distributes the colormap according to the
distribution of pixel intensities in an image.

POW supports TrueColor displays and has more "X colormap friendly"
support for PsuedoColor display. See the documentation for
the "-cmap" fv command line switch or the POW "Color" help menu
item for details.

Text labels can be placed on a graph at a
position fixed either to the graph (eg, a legend) or to the
graph's coordinate system (eg, an object label).

Font, size, and style of labels can be
independently controlled for graph titles, axis labels, tick
labels, and each text label.

Once displayed in POW, the contents of graphs can be edited and
multiple graphs can be merged into one. Coordinate information
(labels, pixel sizes, WCS parameters, etc) can be modified as
well.

Add preview capability. In this panel, user can also rotate, zoom to preview image.

Allow user to save the image in POW display to one of these formats: bmp, jpeg
postscript (default), png, pnm or tiff.

Add directory preview to allow user to save image to different location on local disk

Multiple images can be mosaiced within a single graph. The only
restriction is that the images have identical
rotations. (Well-separated WCS images will not be projected
exactly, though.)

A single intuitive dialog box
controls virtually all aspects of a graph, from
its contents and labels, to the tick mark spacing, to the display
options of its curves, to the colormaps of its images.

Each curve plotted in a graph can be displayed in a number of
line styles/widths, point shapes/sizes, and colors.
The color of a curve's points and connecting
lines can have different colors. Graphs containing multiple
curves will have different colors assigned to each
curve.

Log and semi-log graphs can be created from
either logarithmic or regular curve data.

Allow user to reverse the functionality of the left and right mouse buttons within
the POW display via pow's preferences settings (default: Left mouse button - control
zoom, right mouse button - control brightness/contrast).

A standalone tool, POWplot, can be used to display a single image
without going through fv.

Add A4 paper size.

Rework print interfac.

Fix preview orientation.

Fix preview page layout.

Add XPA entry points to print/save image on POW.

Update profile help files.

Graphs can be repositioned and resized, and regions of interest
can be zoomed in on. The cursor's position within a graph and,
for images, the pixel's value located there are displayed in a
continuously-updated readout.

See the release notes for details on
the changes from the previous version.